Brickmaking-machine.



c. H. FROST.

, BRIOKMAKING MACHINE.

APPLIOATION IILBD BEPT.10, 1907.

1,004,406, Patented Sept. 26, 191 1 I 75mm 4 M0 41,

' UNITED STATES PATENT OFFICE.

CHARLES H. FROST, 0F PASADENA, CALIFORNIA, ASSIGNOR TO LOS ANGELES PRESSED BRICK ('30., A CORPORATION OF CALIFORNIA.

BRIQKMAKING-MACHINE.

Specification of Letters Patent.

Application filed September 10, 1907.

Patented Sept. 26, 1911.

Serial No. 392,226.

To all whom it may concern:

Be it known that I, CHARLES H. Fnosr, a

citizen of theUnited States, residing at Machines, of which the following is a specification. i

This invention relates to improvements in brick makin machinery designed to produce a brie particularly paving brick, which is laid. edgewise and the flat face of which must be separated from the flat face of the adj acent brick to permit the grouting or cement to be introduced between the brick, and the object of the present invention is to provide an improved construction wherebythe brick is formed .with a plurality of projections on its face which will hold the brick a slight distance from the adjacent brick and yet will allow the mortar or cement to flow down to the bottom of the crack between the two bricks, so that the space between the bricks is completely filled by the mortar and the bricks thus firmly cemented in place.

ing with the adjacent brick and to thus form a space for the mortar, and the spaces 3 between the respective projections to permit the mortar to How down so as to completely fill the space between two adjacent bricks. In constructing this brick, the plastie is run out from the press 4 in a c0ntinuous bar 5, the press 4 forming two ridges 6 on top of the bar 5, as clearly shown in Fig. 2. As the bar 5 travels in the direction of the arrow, being pushed from the press 4, it rides on a traveling belt 7 supported at suitable intervals by rollers 8 as shown in Fig. 1, and the ridges 6 are indented by a rotating wheel 9, the'surfacei of which is provided with longitudinal parallel ribs 19,

the ribs 10 pressing down into the ridges 6 of the plastic as the bar 5 runs under the wheel 9, so that as the bar issues beyond the wheel 10 the ridges 6 are notched as shown, tlhus forming the projections 2 indicated in The wheel 9 is mounted in journals 11 on a frame 12 hinged at 13 to brackets 14; The swinging ends of frame 12 are guided by vertical posts 15, and coil springs 16 are arranged above the bars of frame 12 to secure the necessary pressure of wheel 9 against the bar Nuts 17 are arranged on posts 15 to prevent the frame 12 swinging too far down so that the ribs 10 indent deeper than the height of the ridges 6. By adjusting nuts 18 on posts 15 the tension of springs 16 may be regulated to the desired degree. After leaving the wheel 9 the bar 5 is cut at regular intervals by wires 19 carried by a rotating spider 20 and the bricks are carried away from the cutter on atravclin belt 21, the speed of which is "greater than elt 7, so that as the bricks leave the cutter they are spaced apart on belt 21 permitting them to be readily removed therefrom.

Itis not necessary to operate the wheel 9 by mechanical means as the indentation of its ribs 10 in the ridges 6 is sufiicient to give the wheel rotation.

' As shown in the drawings the ribs 10 are formed separately from the wheel 9, but it v is obvious that the wheel 9 and ribs 10 could easily be cast as one integral piece if desired.

It is important to note that the notches formed in the ridges 6 are not produced bycutting out portions of the ridges, but are produced by indentation of the ribs 10, and there is thus no material removed from the ridges 6 to lie on the bar as would be the case if the notches were cut out, as the re moval of such out out plastic is a difficult matter. ,Moreover, it is diflicult to cut out the notches without tearing or roughening the plastic. By producing the notches by indentation, however, the slight amount of plastic whieh originally filled each notch is compressed into the bar instead of being removed, and thus the walls of the notches are very smooth and there is no loose material which has to be removed from the bar 5.

lVhat I claim is 1. In a brick machine, means for forming a bar of plastic material with parallel ridges Wheel journaled with its axis above and at right angles to the movement of said bar Wheel journaled in said frame, means for carrying a bar of plastic material with parallel ribs on'its upper face under said Wheel, ivhereby the ribs are indented, and means for severing said bar into lengths.

3. In a brick machine, means for forming a rectangular block of plastic material hav- 20 ing a plurality of longitudinal ridges upon one side, and means for forming each of said ridges into a plurality of projections subsequent to the formation of the ridges.

In testimony whereof, I have hereunto set 25 ,my hand at Los Angeles, California,-this 3d 4 day of'september 1907.

CHARLES H."FRQST. lIn presence of- G. T. HAOKLEY, FRANK L. A. GRnHAM. 

